cesiumBack/public/font/css/commit-ie7-codes.css

.icon-cancel { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }
.icon-search-1 { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }
.icon-angle-left { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }
.icon-angle-right { *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = ' '); }